LG OLED65G4SUB vs Samsung QN77S84FAEXZA
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Choosing between the LG OLED65G4SUB and Samsung QN77S84FAEXZA? Both compete in the TV segment. Here’s how they compare across the specs that matter most for your home theater.
Looking at overall performance dimensions: The LG OLED65G4SUB scores higher in video quality, form factor, room fit. The Samsung QN77S84FAEXZA leads in value. They score similarly in gaming performance, ease of use, future-proofing.
On the display side, the LG OLED65G4SUB uses a WOLED panel while the Samsung QN77S84FAEXZA uses QD-OLED, and screen sizes differ at 65" vs 77". OLED panels produce perfect blacks by turning pixels off entirely. QD-OLED adds a quantum dot layer for wider color. VA panels offer better contrast than IPS but narrower viewing angles. Mini-LED is a backlight technology applied to LCD panels, offering thousands of dimming zones for improved contrast. Bigger isn't always better — it depends on viewing distance. THX recommends a 36-degree viewing angle; SMPTE suggests 30 degrees minimum. Our viewing distance calculator helps find the sweet spot.
The LG OLED65G4SUB holds an advantage across more performance dimensions, but the Samsung QN77S84FAEXZA may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
For most home theaters, the LG OLED65G4SUB is the stronger choice — it leads in 3 of 7 scored dimensions. The Samsung QN77S84FAEXZA makes more sense if you prioritize the 1 dimension where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
LG G4 65" Class OLED evo AI 4K Smart TV 2024 - OLED65G4SUB
Samsung S84F OLED TV 77-Inch 4K Smart with Vision AI in Graphite Black
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | $3,399.99 | N/A |
| Screen Size | 65" | 77" |
| Resolution | 4K | 4K |
| Panel Type | WOLED | QD-OLED |
| Backlight Type | none | none |
| Native Contrast Ratio | Infinite | Self-illuminating pixels |
| HDR Formats | HDR10, Dolby Vision, HLG | HDR10, HLG |
| Refresh Rate | 120Hz | 120Hz |
| VRR | Yes | Yes |
| VRR Type | FreeSync+G-Sync | FreeSync Premium |
| ALLM | Yes | Yes |
| Smart OS | webOS | Tizen |
| Speaker Config | 4.2 | — |
| Dolby Atmos (Speakers) | Yes | Yes |
| HDMI Total Ports | 4 | 4 |
| HDMI 2.1 Ports | 4 | 4 |
| eARC Port | Yes | No |
| VESA Pattern | — | 400x300 |
| Processor | α11 AI Processor 4K | NQ4 AI Gen2 Processor |
| Model Year | — | — |
Key Differences
- Series Name: LG OLED65G4SUB at G4 vs Samsung QN77S84FAEXZA at S84F
- USB Type: LG OLED65G4SUB at 3ea (v 2.0) vs Samsung QN77S84FAEXZA at 2 x USB-A
- Panel Type: LG OLED65G4SUB at WOLED vs Samsung QN77S84FAEXZA at QD-OLED. OLED panels produce perfect blacks by turning pixels off entirely. QD-OLED adds a quantum dot layer for wider color. VA panels offer better contrast than IPS but narrower viewing angles. Mini-LED is a backlight technology applied to LCD panels, offering thousands of dimming zones for improved contrast.
- HDR Formats: LG OLED65G4SUB at HDR10, Dolby Vision, HLG vs Samsung QN77S84FAEXZA at HDR10, HLG. Dolby Vision adds dynamic metadata that adjusts brightness scene-by-scene. HDR10 is the baseline. HDR10+ is Samsung's alternative to Dolby Vision.
- Smart OS: LG OLED65G4SUB at webOS vs Samsung QN77S84FAEXZA at Tizen
Which Should You Choose?
Choose LG OLED65G4SUB if you want:
- + lighter weight for easier placement
- + lighter weight for easier placement
Choose Samsung QN77S84FAEXZA if you want:
- + larger 77" screen for more immersive viewing
- + lower power draw for ongoing energy savings
See Where These Rank
Check our editorial rankings to see how LG OLED65G4SUB and Samsung QN77S84FAEXZA compare to the rest of the field.
Best TV RankingsRelated Calculators
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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